/**
 * ***************************************************************************** Copyright (c) 2005,
 * 2006 Subclipse project and others. All rights reserved. This program and the accompanying
 * materials are made available under the terms of the Eclipse Public License v1.0 which accompanies
 * this distribution, and is available at http://www.eclipse.org/legal/epl-v10.html
 *
 * <p>Contributors: Subclipse project committers - initial API and implementation
 * ****************************************************************************
 */
package org.tigris.subversion.subclipse.ui.actions;

import java.lang.reflect.InvocationTargetException;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.Set;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.jface.action.IAction;
import org.eclipse.team.core.TeamException;
import org.eclipse.ui.actions.WorkspaceModifyOperation;
import org.tigris.subversion.subclipse.core.ISVNLocalResource;
import org.tigris.subversion.subclipse.core.SVNException;
import org.tigris.subversion.subclipse.core.SVNTeamProvider;
import org.tigris.subversion.subclipse.core.commands.UnlockResourcesCommand;
import org.tigris.subversion.subclipse.ui.ISVNUIConstants;
import org.tigris.subversion.subclipse.ui.Policy;

public class UnlockAction extends WorkbenchWindowAction {

  protected void execute(IAction action) throws InvocationTargetException, InterruptedException {
    if (action != null && !action.isEnabled()) {
      action.setEnabled(true);
    } else {
      if (getSelectedResources() != null && getSelectedResources().length > 0) {
        final IResource[] resources = getSelectedResources();
        run(
            new WorkspaceModifyOperation() {
              protected void execute(IProgressMonitor monitor)
                  throws CoreException, InvocationTargetException, InterruptedException {
                try {
                  Hashtable table = getProviderMapping(getSelectedResources());
                  Set keySet = table.keySet();
                  Iterator iterator = keySet.iterator();
                  while (iterator.hasNext()) {
                    SVNTeamProvider provider = (SVNTeamProvider) iterator.next();
                    UnlockResourcesCommand command =
                        new UnlockResourcesCommand(
                            provider.getSVNWorkspaceRoot(), resources, false);
                    command.run(Policy.subMonitorFor(monitor, 1000));
                  }
                } catch (TeamException e) {
                  throw new InvocationTargetException(e);
                } finally {
                  monitor.done();
                }
              }
            },
            true /* cancelable */,
            PROGRESS_DIALOG);
      }
    }
  }

  /**
   * @see
   *     org.tigris.subversion.subclipse.ui.actions.WorkspaceAction#isEnabledForSVNResource(org.tigris.subversion.subclipse.core.ISVNResource)
   */
  protected boolean isEnabledForSVNResource(ISVNLocalResource svnResource) {
    try {
      if (!super.isEnabledForSVNResource(svnResource)) {
        return false;
      }
      return svnResource.getStatusFromCache().isLocked();
    } catch (SVNException e) {
      return false;
    }
  }

  /*
   * @see org.tigris.subversion.subclipse.ui.actions.ReplaceableIconAction#getImageId()
   */
  protected String getImageId() {
    return ISVNUIConstants.IMG_MENU_LOCK;
  }

  /* (non-Javadoc)
   * @see org.tigris.subversion.subclipse.ui.actions.WorkspaceAction#needsToSaveDirtyEditors()
   */
  @Override
  protected boolean needsToSaveDirtyEditors() {
    return false;
  }
}
